Farmer Read-ng passing over his Grounds one Night, at Little-Holland-House, near Kensington, catch’d a Gentleman and a Lady, against a Five-bar Gate, in the Act of Vitiation; and calling out to know their Business there, at that late Season, the Gentleman made Answer, that They were only going to PROP-A-GATE.

2015 translation: A couple gets kinky next to a gate in a field when a farmer walks up and asks what they’re doing. The guy replies, “We’re only going to propagate.” Get it? Prop-a-gate? But also like having sex. Funny.